Boot framework rework (#45)

[lunaix-os.git] / lunaix-os / scripts / gather-lga

diff --git a/lunaix-os/scripts/gather-lga b/lunaix-os/scripts/gather-lga
new file mode 100755 (executable)
index 0000000..12134e0
--- /dev/null
+++ b/lunaix-os/scripts/gather-lga
@@ -0,0 +1,70 @@
+#!/usr/bin/env bash
+
+SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
+
+declare -A nm_lookup
+
+kbin="$1"
+
+nm_out=($(nm -l "${kbin}" | awk '$3 ~ /^__lga*/ {print $3 "," $4}'))
+
+for line in "${nm_out[@]}"
+do
+    parts=(${line//,/ })
+    if [ "${parts[1]}" != "" ]; then
+        path=(${parts[1]//:/ })
+        relative=$(realpath -s --relative-to="${SCRIPT_DIR}/.." "${path[0]}")
+        nm_lookup["${parts[0]}"]="${relative}"
+    fi
+done
+
+objdump_out=($(objdump -t -j .lga "${kbin}" | grep .lga | awk '!($NF ~ /_start$|_end$|_ldorder$/) {print $NF}'))
+
+list=()
+dev_list=()
+init_list=()
+sysmap_list=()
+init_prefix="lunainit_"
+sysmap_prefix="twiplugin_inits_"
+devdefs_prefix="devdefs_"
+fs_prefix="fs_"
+
+for line in "${objdump_out[@]}"
+do
+    loc=${nm_lookup["$line"]}
+    if [ "$loc" == "" ]; then
+        continue
+    fi
+    
+    type="unknown"
+    line=$(echo "$line" | awk '{ sub(/^__lga_/, ""); print }')
+
+    if [[ $line == $init_prefix* ]]; then
+        line=$(echo "$line" | awk "{ sub(/^${init_prefix}/, \"\"); print }")
+        init_list+=("$line $loc")
+        type="lunainit"
+    fi
+    
+    if [[ $line == $sysmap_prefix* ]]; then
+        line=$(echo "$line" | awk "{ sub(/^${sysmap_prefix}/, \"\"); print }")
+        sysmap_list+=("$line $loc")
+        type="twiplugin"
+    fi
+
+    if [[ $line == $fs_prefix* ]]; then
+        line=$(echo "$line" | awk "{ sub(/^${fs_prefix}/, \"\"); print }")
+        sysmap_list+=("$line $loc")
+        type="fs"
+    fi
+
+    if [[ $line == $devdefs_prefix* ]]; then
+        line=$(echo "$line" | awk "{ sub(/^${devdefs_prefix}/, \"\"); print }")
+        type="devdefs"
+    fi
+
+    line=$(echo "$line" | awk "{ sub(/_on_[a-z]+$/, \"\"); print }")
+    list+=("$line $loc")
+
+    echo "| $type | \`$line\` | $loc |"
+done
+